FUP Commands
File Utility Program (FUP) Reference Manual—523323-014
2-16
ALTER Parameters for Partitioned Files
PART ( sec-partition-num , [\node.]$volume
[ , pri-extent-size [ , sec-extent-size ] ] )
PART
alters secondary partition specifications for partitioned files. You can specify extent
sizes if you are adding a new partition or if you are altering an existing partition of a
key-sequenced file. You must specify each secondary partition separately.
If the sec-partition-num already exists, for all file types, you can change
volume.
You can redefine the extent sizes for key-sequenced files only. If the partition
contains data, you must perform additional operations on the partition to complete
the extent-size change.
You can add a new, additional partition to any files that are not key sequenced. You
cannot add partitions to key-sequenced files.
sec-partition-num , \node.$volume
names the volume where this secondary partition is to reside. Specify
sec-partition-num as an integer from 1 through 15 to designate the
secondary partition. For an enhanced key-sequenced file, specify sec-
partition-num as an integer from 1 through 63 to designate the secondary
partition. Specify node and volume as the names of the node and volume to
contain the partition. The file name and the subvolume of the primary partition
are specified when the file is created.
Although FUP lets you specify any number in the range 1 through 15 for
sec-partition-num, FUP changes it to a standard DP2 number that starts
at zero when the file is created.
pri-extent-size , sec-extent-size
alters the primary and secondary extent sizes. The default value for
pri-extent-size is one page (2,048 bytes). If you specify a value of zero or
do not specify a value, sec-extent-size defaults to the
pri-extent-size value. You cannot define primary or secondary extents as
zero pages when altering files.
For partitioned unstructured files where one or more partitions reside on a 512
byte sector disk enclosure in an external disk enclosure
1
, DP2 has additional
restrictions. You must specify both the pri-extent-size and the sec-
extent-size so that they can be explicitly divisible by 14. DP2 does not
automatically round the size up. Additionally, you must specify the same pri-
Note. Example 2-6 on page 2-100 shows how the DP2 number is listed in the INFO
DETAIL command.
1. Examples of such disks are JBOD (sub-type = 53) and ESS (sub-type = 52).
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